. >> some are in canada. >> bill: i think you are right. it's increasing radicalization. it comes back if you are tipped on this guy, didn't the fbi look at these youtube things and didn't they put it all together that this guy was not, you know, a safe guy? >> my impression is there was no social media activity by the time the fbi interviewed him in 2010. two years later goes and spends the six months in russia. now, remember, i cannot overemphasize the bitterness of the chechen muslim people at the russian christian people. it could be they just conflate all the christian west with the enemy, the decadent enemy. but this guy, tamerlan, the 26-year-old clearly was also an engineering student, remember, at bunker hill community college, so the expertise to build the pressure cooker bomb, we have seen these pressure cooker bombs, bill in marketplaces throughout south asia. they are very commonly sold and used as terror weapons. the expertise, it wouldn't take long to get it together. >> bill: we have a couple of related stories to the bombers. the first one is a sound bite